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[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

** Description changed:

  $ lsb_release -rd
  Description:    Ubuntu intrepid (development branch)
  Release:        8.10
  
  I'm running intrepid, with all available updates by today:
  kernel 2.6.27-3
  xserver-xorg-core 2:1.5.0-1ubuntu1
  xserver-xorg-video-ati 1:6.9.0+git20080826.a3cc1d7a
  
  The machine is a Thinkpad T42 (2373-R94), with an "ATI Technologies Inc
  Radeon RV250 [Mobility FireGL 9000] (rev 02)".
  
  I'm running KDE4.1.1, using most of the default options.
  
  Whenever I plug an external monitor to the VGA port and run "xrandr" my
  system freezes. The same happens if I open krandrtray.
  
  The only log I can get is from dmesg by setting netconsole. This is what
  I see every single time I try to run xrandr with an external monitor
  plugged:
  
  [ 3547.526689] [drm:radeon_cp_idle] *ERROR* radeon_cp_idle called without lock held, held  0 owner f5522b00 f55220c0
  [ 3547.530090] [drm:radeon_cp_reset] *ERROR* radeon_cp_reset called without lock held, held  0 owner f5522b00 f55220c0
  [ 3547.533574] [drm:radeon_cp_start] *ERROR* radeon_cp_start called without lock held, held  0 owner f5522b00 f55220c0
  
  I've seen others reporting something like this long before, but not
  exactly the problem I'm facing. Maybe someone have a clue.
+ 
+ [lspci]
+ 00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03)
+     	Subsystem: IBM Device 0529
+ 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] (rev 02)
+     	Subsystem: IBM Device 0531

-- 
[intrepid] System freezes when running xrandr with an external monitor plugged - Thinkpad T42 - radeon
https://bugs.launchpad.net/bugs/270646
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